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Finding the Fourth Proportional to 558,958.74, 771,338.58 and 304,309.86

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Solution

The fourth proportional to 558,958.74, 771,338.58 and 304,309.86 is: 419,934.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,958.74 : 771,338.58 = 304,309.86 : x
  2. Step 2: Convert to fraction form
    558,958.74/771,338.58 = 304,309.86/x
  3. Step 3: Cross multiply
    558,958.74x = 771,338.58 × 304,309.86
  4. Step 4: Simplify right side
    558,958.74x = 234,725,935,292.40
  5. Step 5: Solve for x
    x = 234,725,935,292.40/558,958.74
  6. Step 6: Final answer
    x = 419,934.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.